
Below is the ASTM A17 (the oldest standard I have) which withdrawn in 1945. The American Society for Testing and …

در دانشگاه درسي داشتيم كه پاس كردنش اصلاً آسان نبود و نام استادش، پاي ثابت خاطرات ترسناكي بود كه سال …
Stainless steels owe their widespread use to a combination of unique properties that have advantages over those of other steels and nonferrous metals for many applications. The principal outstanding characteristics are their resistance to corrosion in many environments, their good …